Industry
Banking & Financial Services
Technologies
Flutter, .NET Core, Firebase
About Our Client
Our client is a multinational banking group operating across Southeast Asia and the Middle East, serving over 12 million retail and business customers. With aggressive goals for digital adoption, they sought to launch a unified mobile banking app across Android and iOS, offering everything from account management to digital onboarding and AI-powered support.
Challenge
The bank’s existing mobile experience was fragmented, outdated, and lagging behind competitors. They faced multiple challenges:
- Multi-Platform Inconsistencies: Existing iOS and Android apps were built separately, leading to UI/UX drift and costly maintenance.
- Customer Onboarding Drop-off: Over 40% of new users abandoned the registration process due to delays and complex steps.
- Data Silos & Legacy APIs: Customer data was spread across multiple legacy systems with undocumented APIs and no real-time sync.
- Security & Compliance: The app needed to meet KYC, AML, and GDPR compliance, while enabling biometric login and fraud prevention.
- Scalability: The new platform had to handle over 500K concurrent users with no compromise on speed or security.
Solution
Celestial Infosoft delivered a custom cross-platform mobile app with an intelligent backend infrastructure, strong security layer, and deeply integrated banking features.
Key Features Delivered:
- Unified Cross-Platform Architecture
- Built a single-codebase mobile app using Flutter for Android & iOS.
- Ensured 98% design and functionality parity across both platforms.
- AI-Powered Onboarding & KYC
- Integrated real-time OCR + facial recognition for eKYC.
- Used AI to auto-validate ID documents and detect fraudulent attempts.
- Real-Time Banking APIs
- Re-architected legacy systems into RESTful microservices.
- Implemented secure caching, queuing, and load balancing for real-time sync.
- Secure & Compliant Architecture
- Used OAuth 2.0, biometric auth, and multi-device session control.
- Implemented audit logging, role-based access, and compliance-ready encryption.
- Scalable Backend on Azure
- Deployed backend services on Azure Kubernetes with auto-scaling.
- Integrated Firebase Crashlytics and Azure Monitor for real-time performance insight.
- Chatbot & Voice Assistant
- Built an in-app AI chatbot for 24/7 support using Dialogflow and integrated voice commands for key tasks like balance checks and transfers.
Project Highlights
- 6-month rollout across 7 countries with full localization (languages + currency formats).
- Real-time fraud detection system reduced suspicious logins by 35%.
- Completed migration of 20+ legacy APIs into a secure microservices architecture.
- Delivered 100+ mobile UI screens optimized for both smartphones and tablets.
Results
- 99.7% Crash-Free Sessions in the first 3 months after go-live.
- 3x Faster Onboarding completion due to automated KYC and simplified flows.
- 80% Reduction in customer service queries through chatbot automation.
- 4.8+ App Store Rating maintained consistently across Android and iOS.
Technologies and Tools
- Frontend: Flutter
- Backend: .NET Core, Redis, RabbitMQ
- Database: MS SQL Server, Firebase Realtime DB
- CI/CD: Azure DevOps, Bitrise
- Security: OAuth 2.0, TLS 1.3, Firebase App Check
- Compliance: KYC, AML, GDPR
Client Feedback
“Celestial Infosoft not only built an app, they reimagined our mobile banking experience. Their attention to detail, proactive risk handling, and expertise in secure architecture have set us years ahead of the competition.”
– Client Says
